FATIGUE CRACKING IN BRIDGES FROM OUT-OF-PLANE DISPLACEMENTS

This paper examines three cases of fatigue cracking from out-of-plane displacements. One case in which transportation and handling resulted in unusually high cyclic stresses at the ends of transverse web stiffeners; a second case where the end rotation of transverse floor beams framing into longitudinal girder webs resulted in cracking at the end of the connection plates welded to the longitudinal girder web; and a third case where riveted connection plates connected cantilever brackets to floor beams. The riveted connection plates were found to be susceptible to in-plane bending as a result of relative movement between the girder and the floor system. Field and laboratory studies were very beneficial in assessing the mode of behavior and causes of fatigue cracking. The results of these studies are briefly summarized.

  • Supplemental Notes:
    • From the Sixth Canadian Structural Engineering Conference, Toronto, March 13-14, 1978.
  • Corporate Authors:

    Canadian Steel Industries Construction Council

    201 Consumers Road, Suite 300
    Willowdale, ONo M2J 4G8,   Canada 
  • Authors:
    • Fisher, J W
  • Publication Date: 1978

Media Info

  • Pagination: 38 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00188901
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Mar 28 1979 12:00AM